<template>
  <div class="icons">

    <swiper :options="swiperOption" >
      <swiper-slide v-for="(page, index) of pages" :key="index">
        <div class="icon" v-for="item of page" :key="item.id">
          <div class="icon-img">
            <img class="icon-imgcontent" :src="item.imgUrl" alt="">
          </div>      
          <p class="icon-desc">{{item.desc}}</p> 
        </div>
      </swiper-slide>
      <div class="swiper-pagination"  slot="pagination"></div>    
    </swiper>   
    
  </div>
</template>
<script>
  export default {
    name: 'HomeIcons',
    props: {
      iconList: Array
    },
    data () {
      return {
        swiperOption: {
          pagination: {
            el: '.swiper-pagination'
          },
          loop: true,
          autoPlay: false
        }       
      }
    },
    computed: {
      pages () {
        const pages =[]
        this.iconList.forEach((item, index) => {
          const page = Math.floor(index / 8)
          if (!pages[page]) {
            pages[page] = []
          }
          pages[page].push(item)
        })
        return pages
      }
    }
  }
</script>
<style lang="stylus" scoped>
  @import '~styles/variables.styl'
  @import '~styles/mixins.styl'
  .icons >>> .swiper-container
    height: 0
    padding-bottom: 50%
  .icons
    margin-top: .1rem
    .icon
      height: 0
      position: relative
      float: left
      width: 25%
      padding-bottom: 25%
      .icon-img
        position: absolute
        left: 0
        top: 0
        right: 0
        bottom: .44rem
        box-sizing: border-box
        padding-left: .2rem
        .icon-imgcontent
          displaty: block
          margin: 0 auto
          height: 100%
      .icon-desc
        position: absolute
        left: 0
        bottom: 0
        right: 0
        height: .44rem
        line-height: .44rem
        color: $dackTextColor
        text-align: center
        ellipsis()
</style>